Environmental conditions are changing leading to significant shifts in algal populations. An example of this is the noticeable worldwide increase in Harmful Algal Blooms, primarily cyanobacteria. Identifying algal groups within a total phytoplankton population is critical as some groups can be toxic, affecting public health and economies. Turner Designs is excited to introduce products facilitating increased understanding of the composition of algae populations.

PhytoFind provides in situ algal classification distinguishing among algal groups using specific fluorescence signatures. Real-time abundance estimates are calculated for PE-containing algae (mixed group), PC-containing algae (Cyanophyceae), and total algae (all other algal groups). Calculations include an automatic correction for interference from dissolved organic materials (DOM) providing more accurate real-time estimates. Optics are optimized to minimize interference from turbidity.  Abundances are displayed and logged as group percentages along with temperature, depth, and accurate chlorophyll (µg/L) concentrations.

PhytoFind’s durable Delrin housing is highly resistant to harsh environments. Additional antifouling materials such as wipers and copper plates can be included to minimize biofouling for long term deployments.  If deploying long-term, a high capacity external submersible battery with an estimated maximum deployment time of three months is available.  All PhytoFinds have a large capacity for internal memory storage (over 60,000 data lines).

PhytoFind is factory-calibrated; no calibration standards or tools are required.  Solid state optoelectronics ensure long term instrument stability.  Solid reference standards are available for users wanting to confirm stability in the calibration.

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We now have a series of short videos that provide an overview of using the Ballast-Check 2 Handheld PAM Fluorometer.  Videos include:
What’s in the Bbox
Setting ship and tank values
Using the calibration check standard
Measuring a sample – LOW risk reading
Measuring a sample – HIGH risk reading
Filter washing
Data Download

 

 

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Congratulations to Eric Moody who was awarded a travel stipend for his presentation “From Farms to Fish Pee: Agricultural Growth Alters the Stoichiometry of Nutrient Recycling by a Desert Fish” at the 2017 Society for Freshwater Science Annual Meeting featuring our AquaFluor Handheld Fluorometer.

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Congratulations to Joseph Wasswa who was awarded a travel stipend for his presentation “Assessing the potential of fluorescence spectroscopy to track the presence of contaminants in water reuse systems” at the 253rd ACS National Meeting & Exposition featuring our C3 Submersible Fluorometer.

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California State Lands Commission (CSLC) recently completed a validation exercise of three indicative sampling tools while developing their draft compliance assessment protocols. They evaluated the sampling tools with three different ballast water treatment systems – one UV system and two Electrochlorination systems. In all three assessments, the Ballast-Check 2 results were very similar to the microscopy and flow cytometry results (mean results over three replicates showed a maximum difference of 3 cells/mL, always matching the risk of exceedance level). Chris Brown, Senior Environmental Scientist with the Commission’s Marine Invasive Species Program, presented the results of their validation at the March 16, 2017 ICES/IMO Ballast Water Workgroup meeting. He detailed the planned compliance assessment protocols, if adopted, would be multi-tiered – 1) paperwork, calibration, & functionality; 2) indicative sampling; and 3) full scale testing.  Indicative tools such as the Ballast-Check 2 would be employed when the second tier of indicative sampling is deemed necessary.

>>Learn more about Ballast-Check 2

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Turbidity Plus with Integrated Wiper

Turbidity measurements are often made in shallow waters and keeping the instrument optical face clear is particularly important.  Turner Designs is excited to introduce a new turbidity sensor addressing this issue with a simple solution.  Turbidity Plus is an accurate single-channel turbidity sensor including an integrated wiper which is triggered by the user.  It is designed for integration with multiparameter systems and dataloggers from which it receives power and the wiper trigger. Turbidity Plus delivers a voltage output proportional to the turbidity of the sample which can be correlated to nephelometric turbidity unit (NTU) values by calibrating with a standard of known concentration.  Deployable to 200m, Turbidity Plus is available with or without a plastic housing for simplified integration.  >>Learn More

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Effective April 1, 2017, Cyclops-7F replaces Cyclops-7 Submersible Sensors. Cyclops-7F requires only 1 second after power up before taking measurements. As the Cyclops-7 required 5 seconds, this is a significant reduction in power required, especially if repeatedly power cycling the sensor. All other specifications remain the same.

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Early identification of Harmful Algal Blooms (HABs) is key to mitigating their effects and protecting public health. Turner Designs’ CyanoFluor is a new handheld fluorometer equipped with optics for detecting chlorophyll (CHL) and phycocyanin (PC) responses from natural water samples. CyanoFluor uses these responses to calculate and report a PC to CHL ratio for estimating the relative abundance of cyanobacteria within a phytoplankton population. By monitoring PC to CHL ratios over time, users can tell whether environmental conditions are changing, favoring cyanobacterial production which typically leads to the formation of HABs. CyanoFluor also provides raw fluorescence readings, which can be used to estimate chlorophyll concentrations.

CyanoFluor is factory-calibrated; no calibration standards or tools are required. Solid state optoelectronics ensure long term instrument stability. Results are displayed in less than 30 seconds and logged for future downloading. CyanoFluor is a perfect field instrument for HAB monitoring efforts – small, lightweight, battery-powered, waterproof and easy to use.

>> Product Overview
>> Request a Quote

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Congratulations to Matthew Gray who was awarded a Travel Stipend for his poster presentation at ASLO 2017 featuring our C-sense pCO2 Sensor.

::Presentation Overview::
The Sustainable Ecological Aquaculture Network (SEANET) seeks to expand and enhance aquaculture production in Maine to meet domestic demand and bolster this emerging industry. With >3,000 miles of coastline, identifying suitable habitat for aquaculture in Maine is a daunting but potentially lucrative and necessary task to optimize production and profitability of farms.

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Congratulations to Jayme Smith who was awarded a Travel Stipend for her poster presentation at ASLO 2017 featuring our Trilogy Laboratory Fluorometer.

::Study Questions::
•  Will the diverted Hyperion effluent cause a phytoplankton
bloom in Santa Monica Bay?

•  If phytoplankton do respond, what groups responded and
what was the magnitude of the response?

•  If phytoplankton do not respond, what inhibited the
response?

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